Installation; Installation Outline - Comdial DX-80 Installation & Maintenance Manual

2. Installation

Proper installation of the Comdial DX-80 will assure optimum system operation and the best overall experience for
the users of the DX-80 telephone system. Since the DX-80 system provides communications functions for its users,
following these installation guidelines is required. Doing so will streamline the process and reduce the potential of
experiencing problems while bringing the DX-80 on-line.

Installation Outline

1. Plan the installation, including the Key Service Unit (KSU1 or KSU1 & KSU2) and main distribution frame (MDF)
location, station locations, cable runs, and optional equipment.
2. Assemble the correct tools and supplies. (Telephony tools of the trade. UTP telephony grade cable/wiring.
Miscellaneous telephony hardware;
3. Run DX-80 extension cable/wiring for speakerphones, DSS Consoles and analog devices (FAX machines,
modems, etc.) from the MDF to each location. (Wiring topology is referred to as
cable should loop from one telephone location to another.)
4. Run cable/wiring to any optional equipment, such as external paging equipment, loud bell signaling devices,
music sources, etc.
5. Mount the MDF backboard and attach the
documentation adheres to traditional installation practices of telephony equipment using a dedicated MDF with
66 block wiring field to promote full serviceability of the system and connections using proven techniques.
Alternately, the extension cable/wiring may be routed directly into the DX-80 KSU1/KSU2 housing for
connection directly to the appropriate interface module (408M, DPM8, APM4, COM4, CPM). If extension cables
are routed into the KSU, each will require termination of one cable pair into standard crimping modular
connectors. This method is not recommended due to the inherent lack of serviceability once compete.
6. Terminate extension cables on modular jack assemblies at the terminal locations.
7. Mount the KSU(s) on the MDF backboard. Mounting template provided.
8. Ground the KSU1 (and KSU2 if applicable) to a known "good" earth ground.
9. Install optional expansion modules (COM4, DPM8, APM4) inside the KSU as required.
10. Install optional features modules (AAM, VP1, VP2, VP3, MDM) inside the KSU as required.
11. Route telephone and CO line port interface connections through the appropriate KSU opening (lower left corner)
and connect to them to the interface port. The four pair modular plug pre-terminated DX-80 cable can be used to
aid in this requirement (PN-724PR).
12. Route ancillary device cabling through the appropriate KSU1 opening and terminate as required (music source,
printer/computer for SMDR, external paging equipment, etc.)
Cross-connect
13. the CO lines and extension ports to extension cables on the corresponding punch-down
terminal block.
14. Install the terminal instruments and any optional terminal equipment, such as headsets or single line telephones.
15. Move the Cold-Start/Normal (RAM memory battery backup) strap from the "Cold Start" position to the
"Normal" position. This critical step is detailed in the "Power Up Initialization" topic at the end of this
chapter.
16. Plug the AC power cord into the dedicated AC outlet (or UPS if system battery backup support is required) and
power up the DX-80 system by operating the AC power switch to the "ON" position.
17. Observe the power/peripheral processor heartbeat LED for flashing status after 10-20 seconds. This indicates
that the main peripheral board is active and that its processor is running. During the first power-up sequence
(Cold-Start strap moved to Normal position), default data is loaded which can take as long as 2 minutes. The
main processor LED located on the Central Processor Module may be monitored during the boot-up stage to
determine when the system is operational. A series of flash rates occur during this process. When default is
successfully loaded or whenever the system becomes functional following a power failure, the CPM Heart-beat
LED maintains a consistent fast flash rate. The terminal equipment should be operational at this time.
P7290 IMM
DX-80 I M
NSTALLATION AND AINTENANCE
66
blocks, modular wall jacks, etc.)
"punch-down"
(
2-1
M
ANUAL
"star-wiring"
"66"
) terminal block(s) on the backboard. This
configuration; no